Three persons of a family died when the power house of the Bhitri Khola Hydropower Project at Acharyalihi in Hima Rural Municipality-1 of Jumla caved in, in the wee hours of Friday.

The deceased have been identified as Bimala Raut (30), her nine-year-old son Bharat and eight-year-old son Surya Raut. Bimala is the wife of Gorakh Bahadur Raut, security guard of the power house.

According to rural municipality Chairman Laxman Bahadur Shahi, the incident occurred at around 1 am today.

All of them were sleeping when the tragedy occurred.

Further investigation into the incident is underway.